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Finding the Fourth Proportional to 55,405.51, 83,482.25 and 45,760.84

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Solution

The fourth proportional to 55,405.51, 83,482.25 and 45,760.84 is: 68,950.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,405.51 : 83,482.25 = 45,760.84 : x
  2. Step 2: Convert to fraction form
    55,405.51/83,482.25 = 45,760.84/x
  3. Step 3: Cross multiply
    55,405.51x = 83,482.25 × 45,760.84
  4. Step 4: Simplify right side
    55,405.51x = 3,820,217,885.09
  5. Step 5: Solve for x
    x = 3,820,217,885.09/55,405.51
  6. Step 6: Final answer
    x = 68,950.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.